CaratHunter
Plans
Round|Lab Grown|IGI

1.21ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG836617703

Shape and cutting style on the report: Round brilliant

Certificate IGI LG836617703

Diamond specifications and retailer prices

From €231 EUR
$258 USD
As of October 29, 2026
Save €1,766 EUR (88%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,997 EUR at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836617703 or 836617703. Listed at 22 retailers as of October 29, 2026, with prices from €231 to €1,997, a €1,766 spread on the same certified stone. Helzberg Diamonds lists it at €1,997. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836617703
Dimensions6.77 × 6.83 × 4.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.77 mm6.83 mm1.21 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836617703
Side View
Table 58.0%Crown 35.6°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: €477 EUR|Low: €229 EUR|High: €1,871 EUR|Avg: €685 EUR|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 31, 2026
Retailer 9€231 EUR
Retailer 10€259 EUR
Retailer 4€268 EUR
Retailer 5€286 EUR
Retailer 13€286 EUR
Retailer 17€430 EUR
Retailer 15€456 EUR
Retailer 1€477 EUR
Retailer 6€479 EUR
Retailer 16€492 EUR
Retailer 7€511 EUR
Retailer 12€546 EUR
Retailer 8€638 EUR
Retailer 3€880 EUR
Retailer 14€921 EUR
Retailer 20€931 EUR
Retailer 11€967 EUR
Retailer 19€1,015 EUR
Retailer 18€1,150 EUR
Retailer 2€1,352 EUR
Retailer 21€1,593 EUR

25 data points across 21 retailers

22 retailers€231 EUR to €1,997 EUR

A
Cheapest Retailer
-
€231 EUR
$258 USD
A
Retailer 2
-
€259 EUR
$289 USD
View
Final sale: no returns
A
Retailer 3
-
€268 EUR
$299 USD
View
A
Retailer 4
-
€286 EUR
$320 USD
View
A
Retailer 5
-
€286 EUR
$320 USD
View
A
Retailer 6
-
€430 EUR
$480 USD
View
A
Retailer 7
-
€456 EUR
£401 GBP
View
A
Retailer 8
-
€477 EUR
View
A
Retailer 9
-
€479 EUR
$535 USD
View
A
Retailer 10
-
€492 EUR
ZAR 8,886 ZAR
View
A
Retailer 11
-
€511 EUR
$571 USD
View
A
Retailer 12
-
€546 EUR
£480 GBP
View
B+
Retailer 13
-
€638 EUR
$713 USD
View
B+
Retailer 14
-
€880 EUR
$983 USD
View
B+
Retailer 15
-
€921 EUR
$1,029 USD
View
B+
Retailer 16
-
€931 EUR
SGD 1,406 SGD
View
B+
Retailer 17
-
€967 EUR
$1,080 USD
View
B+
Retailer 18
-
€1,015 EUR
$1,134 USD
View
B+
Retailer 19
-
€1,150 EUR
£1,012 GBP
View
Retailer 20
-
€1,352 EUR
$1,510 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
€1,593 EUR
$1,780 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJMMHNNGJ · Oct 31
€1,997 EUR
$2,231 USD
View
21 more retailers have this diamond
Prices start from €231 EURSave up to €1,766 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.21ct Round
€231 EUR